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Connecting Today.
Powering Tomorrow.

The Independent Electricity System Operator (IESO) works at the heart of Ontario's power system. The IESO delivers key services across the electricity sector including: managing the power system in real-time, planning for the province's future energy needs, enabling conservation and designing a more efficient electricity marketplace to support sector evolution.

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Save on Energy

Q2 Reliability Outlook Now Available

Ontario is expected to have an adequate supply of electricity to meet the needs of residents, businesses and communities for the next 18 months. However, the province has entered a period of tighter electricity supply conditions that will require active outage management and increased import volumes during certain periods.

Read the full report

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Annual Acquisition Report Released

The IESO’s 2022 Annual Acquisition Report describes Ontario’s electricity supply needs for the next 10 years and the existing and proposed solutions identified to meet them.

An information session on April 8, 2022 will explain the report’s key takeaways, the possibilities for meeting near-term needs and highlight opportunities to participate.

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Stakeholder Engagement Meetings

The agenda for the July 19 and 21 stakeholder engagement meetings is now available.

A refreshed stakeholder engagement section has been launched with quick access to all engagements and the IESO’s calendar of events. New features include categories to identify related engagements and key date filters.